PENDERGRAFT -A-

Oil · District 8A · Lease #69431

Operator: ROFF OPERATING COMPANY, LLC

Cum Oil

131k BBL

Cum Gas

377k MCF

casinghead

Wells

1

Production

2009-08 — 2015-06

Peak Month

2011-07

Production History

Cum Oil: 131,423 BBL Cum Gas: 376,747 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,490 BBL/mo

Di (annual)

48.5%

b-factor

0.0

EUR

111,127 BBL

R-squared

0.982

type

exponential

Operator History (from monthly production reports)

2009-08 — 2015-09 ROFF OPERATING COMPANY, LLC 74 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1ROFF OPERATING COMPANY, LLC19,0002008-11-14